DE19504185A1 - Electromagnetic solenoid for directional valve actuation - Google Patents

Electromagnetic solenoid for directional valve actuation

Info

Publication number
DE19504185A1
DE19504185A1 DE19504185A DE19504185A DE19504185A1 DE 19504185 A1 DE19504185 A1 DE 19504185A1 DE 19504185 A DE19504185 A DE 19504185A DE 19504185 A DE19504185 A DE 19504185A DE 19504185 A1 DE19504185 A1 DE 19504185A1
Authority
DE
Germany
Prior art keywords
pole core
housing
valve
sleeve
magnet housing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
DE19504185A
Other languages
German (de)
Other versions
DE19504185B4 (en
Inventor
Marius Cornea
Helmut Patze
Franz-Josef Schleifstein
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hilite Germany GmbH
Original Assignee
Mannesmann Rexroth AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mannesmann Rexroth AG filed Critical Mannesmann Rexroth AG
Priority to DE19504185A priority Critical patent/DE19504185B4/en
Priority to US08/587,970 priority patent/US5871201A/en
Publication of DE19504185A1 publication Critical patent/DE19504185A1/en
Application granted granted Critical
Publication of DE19504185B4 publication Critical patent/DE19504185B4/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
    • F16K31/0603—Multiple-way valves
    • F16K31/061—Sliding valves
    • F16K31/0613—Sliding valves with cylindrical slides
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/16—Rectilinearly-movable armatures
    • H01F7/1607—Armatures entering the winding
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/4902—Electromagnet, transformer or inductor

Abstract

A solenoid (1) is used to actuate the control spool (27) of a directional flow control valve (2). The actuator has a housing (4) that encloses the electromagnet and has a coil (3) located in a cylindrical former (7) having a pole piece (11) above. Inset into the former is a pole core (8) and located above this is an armature element (20) with an actuator pin (25) that has a tip (25a) that extends to displace the valve spool when the coil is energised. The pole core sits against the end of the valve housing (28) and the two stages are mechanically fixed together by having the end (4c) of the metal outer housing (4) rolled over the lip (36) together with formed lips (10) engaging the coil former.

Description

Die Erfindung betrifft einen Elektromagneten mit hülsenförmigem Gehäuse und integriertem Polkern, insbesondere zur Betätigung von Ventilen. Bei den bekannten Elektromagneten ist das hülsen­ förmige Gehäuse als Drehteil aus dem Vollen hergestellt und der Polkern als Bestandteil des Gehäuses ausgebildet. Das Gehäuse ist über den Boden des Polkernes hülsenförmig hinaus verlängert und wird mit dieser Verlängerung an einem Ventilgehäuse durch Umbördeln dieses Endes befestigt. Diese bekannte Ausbildung ei­ nes Magnetgehäuses ist fertigungsmäßig sehr aufwendig.The invention relates to an electromagnet with a sleeve-shaped Housing and integrated pole core, especially for actuation of valves. In the known electromagnets, this is sleeve shaped housing as a turned part made of solid and the Pole core formed as part of the housing. The housing is extended sleeve-shaped beyond the bottom of the pole core and is with this extension on a valve housing Crimped this end attached. This well-known training egg Nes magnetic housing is very expensive to manufacture.

Die Aufgabe der Erfindung besteht deshalb darin, einen Elektro­ magneten mit hülsenförmigem Gehäuse und integriertem Polkern so auszubilden, daß ohne magnetische Verluste in Kauf nehmen zu müssen, eine wesentlich einfachere Herstellung desselben gewähr­ leistet ist.The object of the invention is therefore an electric magnets with a sleeve-shaped housing and an integrated pole core train that to accept without magnetic losses must guarantee a much easier manufacture of the same is accomplished.

Nach der Erfindung wird dies mit den kennzeichnenden Merkmalen des Anspruches 1 erreicht. Durch die Trennung des Polkernes vom Magnetgehäuse kann letzteres in einfacher Weise aus einem Stück Rohr hergestellt werden, oder in weiterer Ausbildung der Erfin­ dung als Tiefziehteil, wobei der Polkern als einfaches Drehteil herzustellen ist. Durch die am Umfang des hülsenförmigen Magnet­ gehäuses eingebrachten Sicken ergibt sich eine einfache axiale Abstützung im Magnetgehäuse für den Polkern.According to the invention this is done with the characteristic features of claim 1 achieved. By separating the pole core from the Magnet housing can easily do the latter from one piece Pipe are manufactured, or in further training by the Erfin dung as a deep-drawn part, the pole core as a simple turned part is to be produced. Due to the circumference of the sleeve-shaped magnet Housing inserted beads results in a simple axial Support in the magnet housing for the pole core.

Weitere Einzelheiten der Erfindung werden nachfolgend anhand ei­ nes Ausführungsbeispieles der Erfindung beschrieben. Die einzige Abbildung zeigt einen Axialschnitt durch einen mit einem Wege­ ventil verbundenen Elektromagneten.Further details of the invention are described below with the aid of e Nes embodiment of the invention described. The only Figure shows an axial section through one with a path solenoid connected to the valve.

In der einzigen Figur ist mit 1 der Elektromagnet und mit 2 das Wegeventil bezeichnet. Die elektrische Wicklung 3 des Elektroma­ gneten ist von dem hülsenförmigen Magnetgehäuse 4 umschlossen. Zwischen dem die elektrische Wicklung 3 aufnehmenden Spulenkörper 5 und den Ankerraum 6 ist ein nichtmagnetisierbares Metall­ rohr 7 angeordnet. Ventilseitig ragt in das Metallrohr der mit einem Flansch 8a versehene Polkern 8. Der Außendurchmesser des Flansches 8a entspricht dem Innendurchmesser des hülsenförmigen Magnetgehäuses 4. In Richtung des Spulenkörpers 5 stützt sich der Flansch an über den Umfang des Magnetgehäuses gleichmäßig verteilten und nach innen gerichteten Sicken 10 ab. Am Flansch 8a des Polkernes stützt sich die Stirnseite 5a des Spulenkörpers 5 ab. Die gegenüberliegende Stirnseite 5b des Spulenkörpers stützt sich über die Polscheibe 11 an dem aus Kunststoff beste­ henden elektrischen Anschlußkörper 12 ab, der sich mittels eines elastischen Ringes 13, der in einer umlaufenden Ausnehmung 14 des Anschlußkörpers liegt, an einem einwärtsgerichteten Bund 4a des Magnetgehäuses 4 in axialer Richtung nachgiebig abstützt. Damit ist der Spulenkörper mit Wicklung im Magnetgehäuse spiel­ frei festgelegt. Der Polkern 8 weist eine hülsenförmige Verlän­ gerung 8b auf, der über einen Luftspalt 16 ein Polrohr 17 gegen­ überliegt, das mit der Polscheibe 11 eine magnetische Einheit bildet. Die von den Stirnseiten 20a und 20b des Ankers begrenz­ ten Räume 21, 22 sind durch Axialbohrungen 23 im Anker 20 mit­ einander verbunden. Der in einer axialen Sackbohrung 24 im Anker eingepreßte Betätigungsstift 25 ist durch eine zentrale Axial­ bohrung 26 im Polkern 8 nach außen geführt. Das nach außen ge­ führte Ende 25a des Betätigungsstiftes liegt am in einem Ventil­ gehäuse 28 geführten Steuerkolben 27 an, dessen dem Betätigungs­ stift abgewandtes Ende 27c von einer Druckfeder 30 in Richtung des Betätigungsstiftes beaufschlagt ist. Mit dem einen Ende 30a stützt sich die Druckfeder 30 an einem im Tankanschluß T des Ventilgehäuses befestigten hülsenförmigen Körper 32 ab. Parallel zur Axialbohrung 26 für den Betätigungsstift ist eine weitere Axialbohrung 33 im Polkern 8 vorgesehen, die den Ankerraum 21 mit dem Ventilraum 34 verbindet. Der Ventilraum 34 ist über Ra­ dialbohrungen 35 im hohlen Steuerkolben 27 mit dem Tankanschluß T des Ventilgehäuses verbunden, so daß auch die Ankerräume 21, 22 mit dem Tankanschluß T in Verbindung stehen. Das Ventilge­ häuse weist magnetseitig einen umlaufenden Kragen 36 auf, dessen Stirnfläche 36a an der äußeren Stirnfläche 8c des Flansches 8a des Polkerns 8 anliegt. Das hülsenförmige Magnetgehäuse 4 ragt über den Kragen 36 des Ventilgehäuses hinaus und ist am Ende 4c am Kragen 36 des Ventilgehäuses eingebördelt, so daß Magnetge­ häuse, Polkern und Ventilgehäuse eine feste in sich geschlossene Baueinheit bilden. Da sich der Spulenkörper ventilseitig am Flansch des Polkernes abstützt und auf der gegenüberliegenden Seite am Anschlußkörper und letzterer über einen elastischen Ring 13 am einwärtsgerichteten Bund 4a des Magnetgehäuses ist eine aus Betätigungsmagnet und Ventil gebildete sichere Funkti­ onseinheit gewährleistet.In the single figure, 1 denotes the electromagnet and 2 the directional valve. The electrical winding 3 of the electroma is enclosed by the sleeve-shaped magnet housing 4 . Between the coil 3 receiving the electrical winding 5 and the armature space 6 , a non-magnetizable metal tube 7 is arranged. On the valve side, the pole core 8 , which is provided with a flange 8 a, projects into the metal tube. The outer diameter of the flange 8 a corresponds to the inner diameter of the sleeve-shaped magnet housing 4 . In the direction of the coil body 5 , the flange is supported on beads 10 which are uniformly distributed over the circumference of the magnet housing and are directed inwards. The end face 5 a of the bobbin 5 is supported on the flange 8 a of the pole core. The opposite end face 5 b of the bobbin is supported on the pole plate 11 from the best existing plastic electrical connector body 12 , which is by means of an elastic ring 13 , which is located in a circumferential recess 14 of the connector body, on an inward collar 4 a of the magnet housing 4 resiliently supported in the axial direction. So that the coil body with winding in the magnet housing is set free. The pole core 8 has a sleeve-shaped extension 8 b, which is opposite a pole tube 17 via an air gap 16 , which forms a magnetic unit with the pole disc 11 . The from the end faces 20 a and 20 b of the armature limited spaces 21 , 22 are connected to each other by axial bores 23 in the armature 20 . The pressed in an axial blind bore 24 in the armature actuating pin 25 is guided through a central axial bore 26 in the pole core 8 to the outside. The outwardly led end 25 a of the actuating pin lies on the valve in a valve 28 guided control piston 27 , the end facing away from the actuating pin 27 c is acted upon by a compression spring 30 in the direction of the actuating pin. With one end 30 a, the compression spring 30 is supported on a sleeve-shaped body 32 fastened in the tank connection T of the valve housing. Parallel to the axial bore 26 for the actuating pin, a further axial bore 33 is provided in the pole core 8 , which connects the armature chamber 21 to the valve chamber 34 . The valve chamber 34 is connected via Ra dial bores 35 in the hollow control piston 27 to the tank connection T of the valve housing, so that the armature chambers 21 , 22 are connected to the tank connection T. The Ventilge housing has a circumferential collar 36 on the magnet side, the end face 36 a of which bears against the outer end face 8 c of the flange 8 a of the pole core 8 . The sleeve-shaped magnet housing 4 projects beyond the collar 36 of the valve housing and is flanged at the end 4 c on the collar 36 of the valve housing, so that Magnetge housing, pole core and valve housing form a solid, self-contained unit. Since the coil body is supported on the valve side on the flange of the pole core and on the opposite side on the connection body and the latter via an elastic ring 13 on the inward collar 4 a of the magnet housing, a safe func tion unit formed from the actuating magnet and valve is guaranteed.

Das Magnetgehäuse ist als Tiefziehteil hergestellt, wobei zur Herausführung des Anschlußkörpers 12 für die elektrische Zufüh­ rung ein zentrisches Loch 38 im Boden 39 des Tiefziehteiles aus­ gestanzt ist. Der verbleibende Bodenteil dient als einwärtsge­ richteter Bund 4a zur Anlage des elastischen Ringes 13.The magnet housing is manufactured as a deep-drawn part, with a central hole 38 being punched out in the bottom 39 of the deep-drawn part for leading out the connecting body 12 for the electrical feed. The remaining bottom part serves as a inward-facing collar 4 a for contacting the elastic ring 13 .

Das Ventilgehäuse weist neben dem Tankanschluß T einen Pumpenan­ schluß P sowie zwei Arbeitsanschlüsse A und B mit entsprechenden Steuerräumen 40, 41 auf. Je nach Steuerlage des Steuerkolbens 27 durch entsprechende Verschiebung durch den Betätigungsstift 25 des Ankers 20 gegen die Kraft der Druckfeder 30 wird der An­ schluß A über die Steuerkante 27a des Steuerkolbens mit der Pumpe und der Anschluß B über die Radialbohrungen 37 mit dem Tank oder der Anschluß B über die Steuerkante 27b des Steuerkol­ bens mit der Pumpe P und der Anschluß A über die Radialbohrungen 35 im Steuerkolben mit dem Tank verbunden. In der Neutralstel­ lung des Steuerkolbens 27 sind die Anschlüsse A und B sowohl vom Tank als auch von der Pumpe P getrennt.In addition to the tank connection T, the valve housing has a pump connection P and two working connections A and B with corresponding control rooms 40 , 41 . Depending on the control position of the control piston 27 by a corresponding displacement by the actuating pin 25 of the armature 20 against the force of the compression spring 30 , the connection A to the control edge 27 a of the control piston with the pump and the connection B via the radial bores 37 with the tank or Connection B via the control edge 27 b of the control piston with the pump P and the connection A via the radial bores 35 in the control piston connected to the tank. In the neutral position of the control piston 27 , the connections A and B are separated from both the tank and the pump P.

Claims (3)

1. Elektromagnet mit hülsenförmigem Magnetgehäuse und in­ tegriertem Polkern, insbesondere zum Betätigen von Ventilen, da­ durch gekennzeichnet, daß der Polkern (8) als selbständiges Drehteil ausgebildet und vom hülsenförmigen Magnetgehäuse (4) umschlossen ist und das Magnetgehäuse über den Umfang gleichmä­ ßig verteilte, einwärtsgerichtete Sicken (10) als axiale Abstüt­ zung für den Polkern in Richtung der elektrischen Wicklung (3) aufweist.1. electromagnet with a sleeve-shaped magnet housing and in a tapered pole core, in particular for actuating valves, characterized in that the pole core ( 8 ) is designed as an independent rotating part and is enclosed by the sleeve-shaped magnet housing ( 4 ) and the magnet housing is distributed evenly over the circumference, has inwardly directed beads ( 10 ) as an axial support for the pole core in the direction of the electrical winding ( 3 ). 2. Elektromagnet nach Anspruch 1, dadurch gekennzeichnet, daß das Ende (4c) der den Polkern (8) aufnehmenden Seite des Ma­ gnetgehäuses (4) sich über den Polkern und einen mit der Stirn­ seite (36a) am Polkern anliegenden Kragen (36) eines mit dem Ma­ gnetgehäuse zu verbindenden Bauteiles, insbesondere eines Ven­ tilgehäuses (28) hinaus erstreckt und am Kragen eingebördelt ist.2. Electromagnet according to claim 1, characterized in that the end ( 4 c) of the pole core ( 8 ) receiving side of the Ma gnetgehäuses ( 4 ) over the pole core and one with the end face ( 36 a) adjacent to the pole core collar ( 36 ) of a component to be connected to the magnetic housing, in particular a valve housing ( 28 ), and is flanged on the collar. 3. Elektromagnet nach den Ansprüchen 1 und 2, dadurch ge­ kennzeichnet, daß das Magnetgehäuse (4) als Tiefziehteil ausge­ bildet ist, dessen Bodenteil (3) eine Öffnung (38) zur Zu- bzw. Herausführung des elektrischen Anschlusses für den Magneten auf­ weist und der Spulenkörper (5) mit elektrischer Wicklung (3) zwischen Bodenteil (4a) und dem Flansch (8a) des Polkernes axial festgelegt ist.3. Electromagnet according to claims 1 and 2, characterized in that the magnet housing ( 4 ) is formed as a deep-drawn part, the bottom part ( 3 ) of which has an opening ( 38 ) for supplying and removing the electrical connection for the magnet and the bobbin ( 5 ) with electrical winding ( 3 ) between the bottom part ( 4 a) and the flange ( 8 a) of the pole core is fixed axially.
DE19504185A 1995-02-09 1995-02-09 Electromagnetically actuated valve Expired - Lifetime DE19504185B4 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE19504185A DE19504185B4 (en) 1995-02-09 1995-02-09 Electromagnetically actuated valve
US08/587,970 US5871201A (en) 1995-02-09 1996-01-17 Electromagnet with sleeve-shaped housing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19504185A DE19504185B4 (en) 1995-02-09 1995-02-09 Electromagnetically actuated valve

Publications (2)

Publication Number Publication Date
DE19504185A1 true DE19504185A1 (en) 1996-08-14
DE19504185B4 DE19504185B4 (en) 2004-07-22

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Family Applications (1)

Application Number Title Priority Date Filing Date
DE19504185A Expired - Lifetime DE19504185B4 (en) 1995-02-09 1995-02-09 Electromagnetically actuated valve

Country Status (2)

Country Link
US (1) US5871201A (en)
DE (1) DE19504185B4 (en)

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FR2738610A1 (en) * 1995-09-13 1997-03-14 Aisin Seiki SWITCHING VALVE HAVING FOUR LIGHTS
DE19747307A1 (en) * 1996-12-06 1998-06-10 Itt Mfg Enterprises Inc Multi-way valve
DE19717445A1 (en) * 1997-04-25 1998-10-29 Bso Steuerungstechnik Gmbh Electromagnet, in particular for actuating valves
WO1999062084A1 (en) * 1998-05-28 1999-12-02 Mannesmann Rexroth Ag Anti-sticking disc for an electromagnetic actuating device
DE19934846A1 (en) * 1999-07-24 2001-01-25 Hydraulik Ring Gmbh Electromagnet and hydraulic valve with an electromagnet
DE10153019A1 (en) * 2001-10-26 2003-05-08 Ina Schaeffler Kg Electromagnet for operating hydraulic valve, uses loose profiled push rod separated from magnet armature, to connect magnet armature with control piston and form equalizing channel
DE102005041395A1 (en) * 2005-09-01 2007-03-08 Schaeffler Kg Hydraulic directional valve
WO2008061718A1 (en) * 2006-11-22 2008-05-29 Thomas Magnete Gmbh Electromagnet
DE102007009940A1 (en) * 2007-03-01 2008-09-04 Thomas Magnete Gmbh Hydraulic directional control valve has electromagnet as actuating element for control slide with control edge and hollow valve sleeve is arranged axially movable within cylindrical shape
EP1992855A1 (en) * 2007-05-18 2008-11-19 Schaeffler KG Electromagnetic switching valve
DE102007026833A1 (en) * 2007-06-06 2008-12-11 Hydraulik-Ring Gmbh Flow control valve
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DE10051614B4 (en) * 1999-10-19 2009-07-02 DENSO CORPORARTION, Kariya-shi Electromagnetic valve
DE102008008735A1 (en) * 2008-02-12 2009-09-10 Hydraulik-Ring Gmbh Electromagnetic drive for valve, has field coil wound on spool carrier, and pot-shaped housing including pot opening region that is radially clamped in area of pot opening edge by clamping ring at cylindrical part of pole core
DE102004055994B4 (en) * 2003-11-20 2012-09-27 Kendrion Binder Magnete Gmbh Actuator for fast-switching processes
EP2600044A1 (en) * 2011-12-01 2013-06-05 SVM Schultz Verwaltungs-GmbH & Co. KG Electromagnet with valve body
EP2600045A1 (en) * 2011-12-01 2013-06-05 SVM Schultz Verwaltungs-GmbH & Co. KG Electromagnetically actuated valve
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Cited By (33)

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Publication number Priority date Publication date Assignee Title
FR2738610A1 (en) * 1995-09-13 1997-03-14 Aisin Seiki SWITCHING VALVE HAVING FOUR LIGHTS
US5878782A (en) * 1995-09-13 1999-03-09 Aisin Seiki Kabushiki Kaisha Switching valve
DE19747307A1 (en) * 1996-12-06 1998-06-10 Itt Mfg Enterprises Inc Multi-way valve
DE19717445A1 (en) * 1997-04-25 1998-10-29 Bso Steuerungstechnik Gmbh Electromagnet, in particular for actuating valves
WO1998049696A1 (en) * 1997-04-25 1998-11-05 Mannesmann Rexroth Ag Electromagnet, specially for actuating valves
DE19717445C2 (en) * 1997-04-25 1999-11-18 Bso Steuerungstechnik Gmbh Electromagnet, in particular for actuating valves
US6344783B1 (en) 1997-04-25 2002-02-05 Hydraulic-Ring Gmbh Electromagnet, specially for actuating valves
WO1999062084A1 (en) * 1998-05-28 1999-12-02 Mannesmann Rexroth Ag Anti-sticking disc for an electromagnetic actuating device
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US5871201A (en) 1999-02-16

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